Re: [libvirt] [PATCH 0/7] x86: Rework KVM-defaults compat code, enable kvm_pv_unhalt by default

2017-10-13 Thread Waiman Long
On 10/13/2017 03:01 PM, Eduardo Habkost wrote: > On Wed, Oct 11, 2017 at 04:19:38PM -0400, Waiman Long wrote: >> On 10/10/2017 03:41 PM, Eduardo Habkost wrote: >>> On Tue, Oct 10, 2017 at 02:07:25PM -0400, Waiman Long wrote: >>>> On 10/10/2017 11:50 AM, Eduardo Habko

Re: [libvirt] [PATCH 0/7] x86: Rework KVM-defaults compat code, enable kvm_pv_unhalt by default

2017-10-11 Thread Waiman Long
On 10/10/2017 03:41 PM, Eduardo Habkost wrote: > On Tue, Oct 10, 2017 at 02:07:25PM -0400, Waiman Long wrote: >> On 10/10/2017 11:50 AM, Eduardo Habkost wrote: >>>> Yes. Another possibility is to enable it when there is >1 NUMA node in >>>> the guest. We g

Re: [libvirt] [PATCH 0/7] x86: Rework KVM-defaults compat code, enable kvm_pv_unhalt by default

2017-10-10 Thread Waiman Long
On 10/10/2017 11:50 AM, Eduardo Habkost wrote: >> Yes. Another possibility is to enable it when there is >1 NUMA node in >> the guest. We generally don't do this kind of magic but higher layers >> (oVirt/OpenStack) do. > Can't the guest make this decision, instead of the host? By guest, do you